Wire mat



(No Mom-J1.)

W. R. PITT.

WIRE MAT.

No. 378,214. Patented Feb.21,1888,

' UNITED STATES PATENT @Erica VILLAM PITT, OF BRUOKLYN, NEV YORK.

wins' MAT.

SPECIFICATION forming part o Letters Patent No. 378,214, dated February 2l, 1838.

Application tiled February Il, i387. Serial No. 228,495. (No model.l

To @ZZ whom it may concern.-

Beit known that I, VILLLXM PITT, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful improvement in XVire Mats, ol' which the following is a specification.

My invention relates to mats which are composed of a body fabric formed of connected coils of wire and a frame surrounding the mat, and with which the coils are connected and by which the fabric i'ornied of interlaced coils is held in flat extended condition.

The invention consists in a mat having a body i'abric oi interlaced wire Vcoils extending parallel with each other and with the opposite side edges or margins of the mat, and having its coils at their points of interlaced con tact united by solder, and a Aframe surrounding and embracing the body fabric, and serving to prevent deflect-ion and the consequent breaking ol the solder at the points of connection.

The invention also consists in a mat composed of a body fabric of connected wire coils extending parallel with each other and with the opposite edges or margins ofthe mat, and a frame comprising metal side bars or portions having greater transverse section than the wire of which the coils are formed, and which extend through the side coils parallel with their axes, and are embraced bythe regular convolutions ofthe side coils, and end bars or portions to which the ends of the coils are secured. In my above combination I prefer to form the end bars double-that is to say, oftwo i parallel members or portions, between which the end portions of the coils are clamped-and both parts or portions ot' said end bars are of no greater depth than the thickness of the mat.

in the accompanying drawings, Figure 1 represents in plan view a portion of amat embodying my invention, and in which the frame is composed ot' a bent bar haltoval in transverse section. Fig. 2 is a sectional view of a portion of the mat on the plane of the dot ted line a: ai, Fig. l. Fig. 3 is a transverse section upon the plane of the dotted line y y, Fig. l; and Figs. and 5 are views similar to Figs. l and 2 of a portion of a mat in which the frame is formed of a dat bar bent to the dcsired shape.

Similar letters otreference designate corresponding parts in allthe gures.

The body fabric A of the mat is composed of coils ofwire which exten d parallel with each other and with opposite edges or margins oi' the mat, and which are connected together; and in this example of my invention the connection of the coils is formed by interlacing them one into the other, as shown at the points b. As many of the coils as are necessary are thus interlaced or connected, so as to form a body fabric of the desired size, and the body fabric is sustained and held in shape by a frame which surrounds the mat.

In Figs. l, 2, and 3 I have represented a frame formed by bending a bar of halt-oval transverse section much greater than the size of the wire employed in making the coils to produce parallel side portions, i3, and end portions, B', one only oi' which is here shown in the drawings. B, extend through the coils Gat opposite edges or margins of the mat parallel with the axes of such coils, and are embraced by the regular convolutions of such coils, and the end bars or portions, B', serve to hold the side hars or portions B, at proper distances apart and have secured to them the ends oi' the several coils. ln this example of my invention I cmploy at each end ot the mat a bar or strip, B2, which is passed through the end convolntions of the several coils, and which is bound to the end bar or portieri, B', by bands of wire c, or other means, the'cnds ofthe coils being clamped between the members B B2, oi' which the end bars are composed. It will therefore be seen that the end bars or portions of the frame are double orcomposet'leach ottwo parallel members, between which the ends of the several coils are clamped.

The double end bars formed by two parallel members or portions are, when combined, of no greater depth than the thick ness of the mat, and hence when placed upon a licor or other support the mat will have a restingsnri'ace on the iloor or other support throughout its extent.

For greater strength, l prefer to make the parallel coils G which are at opposite longitudinal edges of the mat each et' two or more wires, which extend parallel with each other throughout the several convolutions of the rlhe side bars or port-ions, l

ICO

coils, thereby forming at each side of the mat a multiple coil, through which the side bar or portion, B, of the frame extends parallel with the axes of such multiple coil.

The body fabric of wire coils is dipped in a galvanizing-bath, or has its points of interlaced engagement soldered, and the frame serves to hold the body fabric ina fiat state and prevent deflection thereof and consequent breakage of these soldered connections.

In the example of my invention shown in Figs. 4 and 5 I have represented the side bars or portions, B, of the frame as made separate from the end bar or portion, B', and as bent to overlap the end bar or portion, B', at b'. These side bars or portions, and also the end bar, B', are of metal, having a dat transverse section, and the side bars or portions, B, extend through the edge coils, C, of the body fabric parallel with the axes of such coils, as before described. The end bar or portion, B', is passed through the end eonvolntions of the several coils, and the ends of the coils are united by twisting, as shown at c, on the outside of the bar B', or are simply bent over upon the outer side of such bar.

I am aware that ash-sifters and analogous vessels have been woven of wire, and when otherwise completed galvanized, the galvanizing metal serving in a measure to unite the Wires at their points of crossing. In such an article, however, the connection of the crossed wires by solder will very soon be broken by the deflection of the article and by blows to which it is subjected. Vhen a mat having a body fabric formed of coils of wire which are connected, and which extend parallel with the side margins or edges of the mat, is surrounded by a frame of sufficient strength to maintain the mat in a flat state and prevent its detlection, the frame renders the mat durable and prevents breakage of the connections formed by solder or by galvanizing metal, such as are produced by galvanizing the mat as a whole. It will be obvious that if the body fabric formed of coils, as described, and soldered at the points of interlacing or intersection, were employed without any frame, the points of soldered union would be very soon broken;-

but when a substantial frame surrounds such a body fabric and holds it in its iiat state and prevents its dellection from a flat plane, it is rendered very durable, and the soldered connections are not as quickly broken as if such a frame were not used.

I am also aware that a bed-bottom has been formed of interlaced coils extending parallel with each other and with the side edges or margins of the bedbottom, and to secure such a bedbottom to a wooden frame a wireof the same size as the wire forming the coils has been passed through the marginal coils and secured at short intervals by staples to the frame of wood. The wire that is passed through the edge coils is not in anysense a frame. It does not sustain the bed-bottom in position, as that oiiice is performed by the rigid frame of wood, and it simply serves as a means through which the coils may be secured to the frame. y

W'hat I claim as my invention, and desire to secure by Letters Patent, is-

1. A mat having abodyfabric of interlaced wire coils extending parallel with each other and with the opposite side edges or margins of the mat, and having its coils at their points of interlaced contact united by solder, and a frame surrounding and bracing the body fabric, and serving to hold it in its fiat state `and to prevent deliection and the consequent breaking of the solder at the points of connection, substantially as herein described.

2. A mat composed of a body fabric of connected wire coils extending parallel with each other and with opposite edges or margins of the mat, and aframe formed of side bars or portions, B, extending through the side coils parallel with their axes, and which are embraced by the side coils and are much larger in transverse section than the wire of which the coils are made, and end bars or portions to which the ends of the coils are secured, sub

stantially as herein described.

3. A mat composed of a body fabric of connected wire coils extending parallel with each other and with opposite edges or margins of the mat, and a frame consisting of side bars or portions, B, extending through the side coils parallel with the axes thereof, and which are embraced by the regular convolntions of the side coils, and double end bars betweenithe two parallel members of which the end portions ofthe coils are secured, and which when the two parallel members are combined are not greater in depth than the thickness of the mat, whereby provision is afforded for the mat to rest throughout its extent upon a flat surface, substantially as herein described.

VM. R. PITT.

W'itnesses:

C. HALL, FREDK. HAYNEs. 

